1144011213 has 12 divisors (see below), whose sum is σ = 1655860128. Its totient is φ = 761105160.

The previous prime is 1144011199. The next prime is 1144011229. The reversal of 1144011213 is 3121104411.

1144011213 is a `hidden beast` number, since 1 + 1 + 440 + 11 + 213 = 666.

It is not a de Polignac number, because 1144011213 - 2²⁰ = 1142962637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144011013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126123 + ... + 134888.

It is an arithmetic number, because the mean of its divisors is an integer number (137988344).

Almost surely, 2^1144011213 is an apocalyptic number.

It is an amenable number.

1144011213 is a deficient number, since it is larger than the sum of its proper divisors (511848915).

1144011213 is a wasteful number, since it uses less digits than its factorization.

1144011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261504 (or 261501 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1144011213 is about 33823.2348098168. The cubic root of 1144011213 is about 1045.8677233786.

Adding to 1144011213 its reverse (3121104411), we get a palindrome (4265115624).

The spelling of 1144011213 in words is "one billion, one hundred forty-four million, eleven thousand, two hundred thirteen".